ICD-10 G43.909
Billable / SpecificMigraine, unspecified, not intractable, without status migrainosus
About ICD-10-CM G43.909
ICD-10-CM code G43.909 represents Migraine, unspecified, not intractable, without status migrainosus. This is a billable/specific code in the Nervous System chapter (block G43). The 2026 edition of ICD-10-CM G43.909 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G43.909. Per CMS ICD-10-CM Tabular 2026.
- Migraine NOS
Medicare LCD Coverage for G43.909
Local Coverage Determinations (LCDs) from CMS MACs that list G43.909 as a covered diagnosis.
Showing top 10 of 479 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G43.909.
2 Cigna
5 Medicare
CPT Codes Commonly Billed with G43.909
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 99203 New patient office visit — common complaints plus chronic conditions: HTN, diabetes, hyperlipidemia, asthma, GERD, back pain, migraine, tachycardia, prediabetes Primary Care
- 99204 New patient office visit — multiple chronic conditions: HTN, T2DM, hyperlipidemia, asthma, anxiety, depression, obesity, IBS, COPD, thyroid, anemia, CAD, sleep apnea, psoriasis, RA Primary Care
- 99213 Established patient — HTN follow-up, diabetes management, hyperlipidemia, asthma, anxiety, common complaints, back pain, GERD, migraine, acne, joint pain, prediabetes, obesity, anemia, hypothyroid, fatigue Primary Care
- 99214 Established patient — moderate complexity: uncontrolled HTN, diabetes with complications, multiple chronic conditions, COPD, AFib, CKD, sleep apnea, chronic pain, depression Primary Care
- 93880 Duplex carotid — stroke, TIA, carotid stenosis, cerebral atherosclerosis, syncope, migraine, dizziness, headache, family hx vascular disease Cardiology
- 70553 MRI brain with and without contrast — migraine, headache, encephalopathy, brain cancer, epilepsy, brain neoplasm, cognitive decline, MS, hydrocephalus, aphasia, numbness Radiology
- 70551 MRI brain without contrast — migraine, headache, encephalopathy, cognitive decline, MS, epilepsy, syncope, dizziness Radiology
- 95819 EEG awake and asleep — epilepsy, generalized seizures, absence seizures, focal seizures, seizure NOS, fasciculations, syncope, encephalopathy, cognitive decline, aphasia, migraine, headache, insomnia Neurology
- 95165 Botox injection for migraine — chronic migraine, migraine with aura, migraine without aura, menstrual migraine, other migraine, headache Neurology
- 64615 Chemodenervation for migraine/spasticity — chronic migraine, migraine variants, Bell palsy, spasmodic torticollis, muscle spasm, tremor Neurology
Convert G43.909 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G43.909 | 34690 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G43.909
Other codes in section G40-G47 (Episodic and paroxysmal disorders).
ICD-10 G43.909, Billing FAQ
Is ICD-10 code G43.909 billable? +
Yes, G43.909 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G43.909? +
ICD-10 G43.909 includes: Migraine NOS.
What CPT codes are commonly billed with G43.909? +
Procedures frequently paired with G43.909 include: 99203, 99204, 99213, 99214, 93880.
What ICD-9 codes does G43.909 map to? +
Per CMS GEMs, G43.909 maps to ICD-9 codes: 34690. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 2, 2026.
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